Schalldämpfer mit variabler Dämpfungscharakteristik

Noise absorber with variable damping characteristic, for pulsed gas flow, especially exhaust silencers


The chamber contains a housing (2), its gas supply pipe (2), pipes (3.1,3.2) integrated in the housing, a pipe coated valve, an actuating box (10) with a diaphragm (11), spring (12), piston rod (13), and pressure connecting union, and a pressure line (6). The actuating box is of overpressure type. The pressure line feeds a gas counter-pressure to the diaphragm overpressure side. The diaphragm low pressure side is engaged by ambient pressure and the spring. The piston rod has a tight seal (14) against the housing.




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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    DE-8908244-U1September 07, 1989Heinrich Gillet Gmbh & Co Kg, 6732 Edenkoben, De
    US-2072372-AMarch 02, 1937Riethmiller RuthExhaust system for automotive engines

NO-Patent Citations (0)


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    DE-102005003582-A1August 03, 2006Dr.Ing.H.C. F. Porsche AgSchalldämpfer für eine Abgasanlage
    DE-102008023553-A1November 19, 2009J. Eberspächer GmbH & Co. KGSilencer for exhaust system of internal combustion engine, particularly of motor vehicle, comprises housing, which has two volumes, and inlet pipe is provided, which is permanently connected with former volume in communicating manner
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    US-7040451-B2May 09, 2006J. Eberspächer Gmbh & Co.Automotive exhaust silencer system with variable damping characteristics
    US-7182171-B2February 27, 2007Heinrich Gillet GmbhMuffler with variable acoustic properties
    US-7438157-B2October 21, 2008Dr. Ing. H.C.F. Porsche AktiengesellschaftMuffler for an exhaust gas system
    WO-0181734-A1November 01, 2001J. Eberspächer Gmbh & Co.Schalldämpferanlage eines kraftfahrzeuges mit variabler dämpfungscharakteristik